• Brain research · Dec 2000

    Roles of urokinase type plasminogen activator in a brain stab wound.

    • K Kataoka, T Asai, M Taneda, S Ueshima, O Matsuo, R Kuroda, A Kawabata, and P Carmeliet.
    • Department of Neurosurgery, Kinki University, School of Medicine, 377-2 Ohno-Higashi, Osaka-Sayama, 589-8511, Osaka, Japan. kataoka@med.kindai.ac.jp
    • Brain Res. 2000 Dec 22; 887 (1): 187-90.

    AbstractUrokinase type plasminogen activator (uPA) may influence brain pathophysiology after injury. We studied disruption of the blood-brain barrier (BBB) and changes in the vasculature after a brain stab wound in uPA-deficient, uPA receptor-deficient, and PA inhibitor-1 (PAI-1) deficient mice. The extravasation of immunoglobulin was greater in PAI-1 deficient mice; less pronounced in uPA-deficient mice; similar to controls in uPA receptor-deficient mice. Vasculatures in the wound proliferated in PAI-1 deficient mice. Our study shows that uPA affects BBB disruption. PA enhances angiogenesis after brain injury.

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